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IL - Storm Collar (supplied with Sealant) - Ø 100 (24-100-83)

Enhance the safety and efficiency of your chimney flue system with the IL Storm Collar with sealant. This premium product is installed as part of a reliable gas vent system, offering robust thermal insulation and secure fitting. National Flues is renowned for high quality gas vent solutions, making this accessory an ideal upgrade for your domestic or commercial installation. Perfect for naturally aspirated gas appliances, it is the ideal choice for those seeking enduring performance.
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£16.99
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At a Glance

  • 25 years proven reliability in UK gas vent systems
  • Durable construction with an aluminium liner and zalutite steel outer case
  • Twin-wall insulated design for enhanced thermal efficiency
  • Secure push fit and twist lock joint method
  • Suitable for both internal and external installations (non-condensing/positive pressure)

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

We Won't Be Beaten On Price

At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

Have Questions?
Phone: 01670 206999
Email: [email protected]

The IL Storm Collar (supplied with Sealant) - Ø 100mm is a top-tier choice in chimney flue systems. This twin-wall insulated, pre-fabricated domestic gas vent system has a stellar reputation spanning 25 years in the UK for its quality and reliability. Tailored for naturally aspirated domestic gas-fired appliances with a draught hood/diverter, it excels under negative pressure and dry conditions, managing flue gas temperatures of up to 250°C.

Available in three diameters: 100mm, 125mm, and 150mm, it features an aluminium liner and a zalutite outer case separated by a 6mm air gap for optimal efficiency. Suitable for both internal and external installation, it is not recommended for condensing and positive pressure applications—an ideal accessory for any comprehensive chimney or flue system.

SKU: 24-100-83

Technical Specifications
Diameter100mm
Inner MaterialAluminium
Outer MaterialZalutite steel (zinc & aluminium coated)
InsulationTwin-wall with 6mm air gap
Max. Flue Gas Temperature250u00b0C
Distance To Combustibles50mm
Joint MethodPush fit and twist lock
Warranty5 year conditional
ApprovalsCE, BS EN 9001:2008
The IL Storm Collar is designed for a straightforward installation around the chimney flue where it penetrates the roof. It is essential to ensure the flue system complies with manufacturer guidelines and installation standards. Always check that the flashing and additional accessories, such as sealants or insulating trims, are correctly in place. Note: This component is not intended for condensing or positive pressure applications. In circumstances where optional accessories are required to enhance compatibility or waterproofing, please search for compatible roof flashings and sealing compounds to ensure a comprehensive and efficient installation.

It is used to provide a secure and snug fit around the chimney flue where it penetrates the roof, ensuring the system remains watertight and efficient.

Yes, it is suitable for both internal and external applications, although it is not designed for condensing and positive pressure environments.

The IL gas vent system is available in three diameter sizes: 100mm, 125mm, and 150mm.

It consists of an aluminium liner and a zalutite outer case, separated by a 6mm air gap for superior insulation and performance.

Yes, it is designed to handle flue gas temperatures up to 250°C, making it a robust and reliable choice for your gas vent system.

The IL gas vent system has been used in the UK for over 25 years, building a reputation for its high quality and reliability.

It is suitable for naturally aspirated domestic gas-fired appliances with a draught hood or diverter.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Price Match Guarantee +

We will match any price like for like on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our IL - Storm Collar (supplied with Sealant) - Ø 100 buyers guide

Don't compromise on safety – secure your gas vent system today with the IL Storm Collar and enjoy unmatched peace of mind.

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